.content {
    width: 90%;
    margin: 0 auto;
    position: relative;
}
.errtip {
    position: relative;
    margin-top: 20px;
    // filter: blur(2px);
    // filter: ~"progid\:DXImageTransform\.Microsoft\.Blur(PixelRadius\=1, MakeShadow\=false)"; /* IE6~IE9 */
    div {
        position: relative;
        display: block;
        height: 7px;
        margin: 0 0 13px;
        background: #ddd;

        &::before {
            content: "";
            opacity: 0;
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: #eee;
            animation: progressactive 1s infinite ease-in-out;
        }

        &:nth-child(1) {width: 30%; animation: ball-spin .5s .1s infinite ease-in-out;}
        &:nth-child(2) {width: 20%; animation: ball-spin .5s .3s infinite ease-in-out;margin-bottom: 20px;}
        &:nth-child(3) {width: 60%; animation: ball-spin .5s .3s infinite ease-in-out;}
        &:nth-child(4) {width: 80%; animation: ball-spin .5s .1s infinite ease-in-out;}
        &:nth-child(5) {width: 50%; animation: ball-spin .5s .1s infinite ease-in-out;}
    }
}
.word {
    position: absolute;
    top: 0;
    right: 0;
    color: #333;
    font-size: 13px;
    font-weight: bold;
    animation: fadein .8s infinite;
}


@keyframes fadein {
    0%{
        opacity: 1;
    }
    50% {
        opacity: .7;
    }
    100% {
        opacity: 1;
    }
}

@keyframes progressactive {
  0% {
    opacity: 0.8;
    width: 0;
  }
  100% {
    opacity: 0;
    width: 100%;
  }
}
